Lol just adopted one of these in black about 2 weeks ago. He's almost a year old and nobody worked with him, just stuck him in the kennel and built up a huge behavior training debt.
But they did the right thing and found us, he's my first big dog but I've already visited a trainer for our first session and I already know how to introduce him to savvy folks, we got a 13 year old girl giving him pats in like ten minutes during the lesson. He's the bestest boy I've ever met, but we've got a good three months of work ahead getting his Cujo barking under control. And just as much a muppet as this absolute unit.